The scapula is a flat, triangular-shaped bone (colloquially as the "shoulder blade"). It is located in the upper thoracic region on the dorsal surface of the rib cage. It connects with the humerus at the glenohumeral jointglenohumeral joint The glenohumeral joint is a ball and socket joint that includes a complex, dynamic, articulation between the glenoid of the scapula and the proximal humerus. Specifically, it is the head of the humerus that contacts the glenoid cavity (or fossa) of the scapula. › books › NBK537018

Anatomy, Shoulder and Upper Limb, Glenohumeral Joint - NCBI

as well as the clavicle at the acromioclavicular joint to form the shoulder joint.

What does scapula attach to?

The scapula articulates with the humerus at the glenoid fossa and the clavicle at the acromion process. The scapula provides attachment sites for many muscles including the pectoralis minor, coracobrachialis, serratus anterior, triceps brachii, biceps brachii, and the subscapularis.

Which ribs does the scapula cover?

The scapula, also known as the shoulder blade, is a flat triangular bone located at the back of the trunk and resides over the posterior surface of ribs two to seven.

What rib level is the scapula?

One such landmark is the inferior angle of the scapula (IAS), which is said to correlate with the T7, T8, or T9 spinous process or spinal level, depending on the source. Gray's Anatomy indicates that the IAS corresponds to the level of the ninth rib, which attaches to the spine at the T8–9 interspace.

What lies between scapula and ribs?

The Luschka tubercle is a hook-shaped bony protuberance, located at the upper medial border of the scapula, which can reduce the space between the scapula and the rib cage and be a predisposing factor for scapular snapping⁽⁷⁾.

Anatomy and Function of the Scapula - Human Anatomy | Kenhub

33 related questions found

What are the muscles called on the side of your ribs?

The intercostal muscles and causes of strain

Your intercostal muscles are the muscles between your ribs. They allow your ribcage to expand and contract so you can breathe.

What is the muscle above your ribs called?

Your intercostal muscles lie between your ribs, attaching them to one another. They help stabilize your upper body and help you breathe. There are three layers of intercostal muscles: the external intercostals, the internal intercostals, and the innermost intercostals. ... Muscle strains are a common cause of chest pain.

What type of bone is scapula?

The scapula is a large, flat triangular bone with three processes called the acromion, spine and coracoid process . It forms the back portion of the shoulder girdle.

What is scapula bone?

scapula, also called shoulder blade, either of two large bones of the shoulder girdle in vertebrates. ... The lateral apex of the triangle is broadened and presents a shallow cavity, the glenoid cavity, which articulates with the head of the bone of the upper arm, the humerus, to form the shoulder joint.

How is the scapula attached to the axial skeleton?

It is attached on its medial end to the sternum of the thoracic cage, which is part of the axial skeleton. The lateral end of the clavicle articulates (joins) with the scapula just above the shoulder joint. You can easily palpate, or feel with your fingers, the entire length of your clavicle.

What 17 muscles attach to the scapula?

Each scapula has 17 muscles attached to it: 1. Posteriorly, from superficial to deep: trapezius, rhomboid major, rhomboid minor, supraspinatus, infraspinatus, levator scapulae, teres minor, teres major, latissimus dorsi, serratus anterior, and subscapularis. 2.

Does the pectoralis major attach to the scapula?

The pectoralis major extends across the upper part of the chest and is attached to a ridge at the rear of the humerus (the bone of the upper arm). ... The pectoralis minor lies, for the most part, beneath the pectoralis major, arising from the middle ribs and inserting into (attaching to) the scapula (shoulder blade).

Is the scapula part of the upper limb?

In anatomy, the scapula (plural scapulae or scapulas), also known as the shoulder bone, shoulder blade, wing bone, speal bone or blade bone, is the bone that connects the humerus (upper arm bone) with the clavicle (collar bone).

What is the function of scapula?

The scapula, better known as the shoulder blade, is a triangular bone that serves as a joining force between the clavicle and the humerus. This bone is located posteriorly (on the back half of the body). The scapula plays an important role in stabilizing the other bones involved in the rhythm of shoulder motion.

Where are the scapula?

The scapula, or shoulder blade, is a large triangular-shaped bone that lies in the upper back. The bone is surrounded and supported by a complex system of muscles that work together to help you move your arm.

What type of bone is the ribs?

1. Flat Bones Protect Internal Organs. There are flat bones in the skull (occipital, parietal, frontal, nasal, lacrimal, and vomer), the thoracic cage (sternum and ribs), and the pelvis (ilium, ischium, and pubis). The function of flat bones is to protect internal organs such as the brain, heart, and pelvic organs.

Which muscles attach the scapula to the axial skeleton?

The medial/vertebral border of the human scapula is the longest of the three borders and serves as the insertion point for four muscles connecting the scapula to the axial skeleton: one connects it to the costal surface (serratus anterior) and three to the medial/cranial aspect (major and minor rhomboids, and levator ...

What are the two processes of the scapula?

The scapula bears two marked processes: the acromion and, rather less obvious, the coracoid. The acromion springs like the head of a golf club from the spine of the scapula, extends anterior to the glenoid fossa and carries a small subsidiary process, the metacromion.

Is the rib a short bone?

Short bones: Short bones also have a tubular shaft and articular surfaces at each end but are much smaller. The short bones include all of the metacarpals and phalanges in the hands, and the metatarsals and phalanges in the feet. ... The flat bones include the scapula (wingbone), the ribs, and the sternum (breastbone).

Are ribs bones or cartilage?

The rib cage is collectively made up of long, curved individual bones with joint-connections to the spinal vertebrae. At the chest, many rib bones connect to the sternum via costal cartilage, segments of hyaline cartilage that allow the rib cage to expand during respiration.

Are ribs long or flat bones?

The flat bones are: the occipital, parietal, frontal, nasal, lacrimal, vomer, hip bone (coxal bone), sternum, ribs, and scapulae.

Which muscle will elevate the scapula?

Levator scapulae helps to elevate the scapula. The rhomboids arise here, from the fourth cervical to the fifth thoracic vertebrae.

What causes winged scapula?

Most lesions associated with winged scapula are the result of blunt trauma due to repetitive movements, as seen in athletics. The most common cause of scapular winging is paralysis of the serratus anterior muscle due to the injury of the long thoracic nerve.

Is winged scapula normal?

A winged scapula is considered normal posture in young children, but not older children and adults.